i talked to someone before that he experienced a couple of times that some person used to give him something then he will fall asleep in instant, they used a cotton to let him breathe on it, then when you wake up you feel like your extremeties are heavy and can't move, you also feel dizzy, you can't see that well and you feel so exhausted and also it made him forget some things.. do you have any idea what type of drug that can be?? please do reply.. thanks..